USTRUST

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING370
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL268
 
  
 
H01S DEVICES USING STIMULATED EMISSION191

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5402831 Restraint coupling assembly for double containment pipe systemAug 01, 91Apr 04, 95[F16L]
5385173 Pipe liner compositionMay 28, 93Jan 31, 95[F16L]
5295143 Three color laserMay 06, 92Mar 15, 94[H01S]
5156185 Position indicator apparatus for rising stem valveNov 08, 91Oct 20, 92[F16K]
5139230 Travel stop assembly for valvesJul 31, 91Aug 18, 92[F16K]
5090447 Transparent ball valve assemblyApr 03, 91Feb 25, 92[F16K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5346658 Method for installing a pipe linerExpiredMay 05, 93Sep 13, 94[B29C]
5273414 Method and apparatus for installing a pipe linerExpiredJan 22, 93Dec 28, 93[B29C]
5213727 Method for installing a pipe linerExpiredJun 03, 91May 25, 93[B29C]
5148445 High power Nd:YLF solid state lasersExpiredSep 26, 90Sep 15, 92[H01S]
5136596 Broadly tunable, high repetition rate solid state and dye lasers and uses thereofExpiredSep 26, 89Aug 04, 92[H01S]
5121398 Broadly tunable, high repetition rate solid state lasers and uses thereofExpiredJul 23, 90Jun 09, 92[H01S]
D326263 Telephone base with displayExpiredJul 16, 90May 19, 92[]
5018260 Supports for double-containment thermoplastic pipe assembliesExpiredMay 26, 89May 28, 91[F16L]
4988163 Infrared laser system for surgical purposes employing compound fiber probeExpiredAug 17, 89Jan 29, 91[G02B, A61B]
4973694 Benzofuran dyes containing a coumarin nucleusExpiredAug 17, 89Nov 27, 90[C07D]
4930544 Double-containment thermoplastic pipe assemblyExpiredOct 20, 88Jun 05, 90[F16L]
4915125 Valve stem extension assemblyExpiredOct 12, 89Apr 10, 90[F16L]
4793694 Method and apparatus for laser beam homogenizationExpiredApr 23, 86Dec 27, 88[G02B]
4786088 Double-containment thermoplastic pipe assemblyExpiredJun 25, 87Nov 22, 88[F16L]
4778693 Photolithographic mask repair systemExpiredOct 17, 86Oct 18, 88[B05D, B23K, B32B]
4677286 Method and apparatus for autofocusing a microscopeExpiredFeb 14, 85Jun 30, 87[G01J]
4637026 Frequency doubling a Q-switched laser beam by using intracavity Type II phase matchingExpiredOct 29, 85Jan 13, 87[H01S]
4618957 Frequency doubling a laser beam by using intracavity type II phase matchingExpiredApr 17, 85Oct 21, 86[H01S]
4617666 Frequency doubling a laser beam by using intracavity type II phase matchingExpiredOct 29, 85Oct 14, 86[H01S]
4585032 Motor operated tandem valve assemblyExpiredNov 14, 84Apr 29, 86[F16K]

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